A comprehensive multistate review finds that the poor face chronic stress from a variety of sources. The stress ranges from concerns regarding parenting to discrimination — and disproportionately affects poor mothers and fathers.

“Those who are poor have much higher stress than those who are not. In fact, being poor was associated with more of almost every kind of stress,” said Dr. Chris Dunkel Schetter, a professor of psychology in UCLA’s College of Letters and Science and the study’s lead author.

The report found that although people with higher incomes have lower levels of stress overall, stress levels aren’t reduced as much for higher-income African-Americans as they are for higher-income whites.

Researchers also learned that Latinos — especially recent immigrants — tend to have lower levels of stress than other groups.

The research is based on extensive interviews with 2,448 mothers who had given birth within the previous month, and 1,383 partners or fathers.